Linux security courses can help you learn system hardening, user access controls, network security protocols, and incident response strategies. You can build skills in configuring firewalls, implementing encryption techniques, and conducting security audits. Many courses introduce tools like iptables for firewall management, OpenSSL for encryption, and Wireshark for network analysis, showing how these skills are applied in practical work to protect systems from vulnerabilities and threats.

Skills you'll gain: Linux, Linux Administration, Malware Protection, Linux Commands, Operating System Administration, Endpoint Security, Security Awareness, Hardening, Active Directory, Security Controls, Computer Security Awareness Training, Network Administration, System Configuration, Systems Administration, Enterprise Application Management, Cloud Deployment, Multi-Factor Authentication, Windows Servers, Cloud Services, Encryption
Intermediate · Course · 1 - 3 Months

Skills you'll gain: Metasploit, Penetration Testing, Open Web Application Security Project (OWASP), Cyber Security Assessment, Bash (Scripting Language), Vulnerability Scanning, Exploitation techniques, Command-Line Interface, Security Testing, Linux, Linux Commands, Vulnerability Assessments, Network Security, Unix Commands, Operating System Administration, Cybersecurity, Brute-force attacks, Scripting, Shell Script, Unix Shell
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Ubuntu, Command-Line Interface, Package and Software Management, Hardening, Unix Shell, Linux Administration, Linux, Software Installation, Network Security, System Configuration, Linux Commands, Patch Management, Open Source Technology, Operating System Administration, Cloud-Native Computing, Containerization, Systems Administration, System Support, DevOps, Administration
Intermediate · Course · 3 - 6 Months

Skills you'll gain: Bash (Scripting Language), Shell Script, Unix Shell, Linux Commands, Linux, Unix Commands, Unix, Command-Line Interface, Windows PowerShell, Scripting, Linux Administration, Operating System Administration, Scripting Languages, Data Pipelines, Mac OS, System Configuration, File I/O, File Management, Software Documentation
Beginner · Course · 1 - 3 Months

Skills you'll gain: Linux Administration, Linux, Linux Servers, Linux Commands, Scripting, Data Integrity
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Penetration Testing, Metasploit, Exploit development, Human Factors (Security), Active Directory, Exploitation techniques, Cyber Security Assessment, Cyber Operations, Brute-force attacks, Network Security, Security Testing, Security Awareness, Vulnerability Assessments, Vulnerability Scanning, Authentications, Threat Management, Infrastructure Security, Wireless Networks, Linux, Mitigation
Advanced · Course · 1 - 3 Months

Infosec
Skills you'll gain: Linux Administration, Version Control, Linux, Git (Version Control System), Linux Servers, Linux Commands, Network Troubleshooting, Unix, Operating System Administration, Bash (Scripting Language), Systems Administration, Scripting, User Provisioning, Shell Script, User Accounts, Software Versioning, System Configuration, Unix Shell, Network Monitoring, Scripting Languages
★ 4.4 (23) · Intermediate · Course · 1 - 3 Months

John Wiley & Sons
Skills you'll gain: Shell Script, Linux Administration, Linux, Systems Administration, Operating System Administration, Linux Servers, Web Servers, Apache, Unix Shell, Bash (Scripting Language), Unix Commands, Nginx, Vulnerability Assessments, Virtualization and Virtual Machines, File Systems, File Management, Virtualization, Command-Line Interface, Network Troubleshooting, Linux Commands
Beginner · Specialization · 3 - 6 Months

Packt
Skills you'll gain: Package and Software Management, Linux Administration, Shell Script, Ubuntu, User Accounts, Linux, Devops Tools, Linux Servers, grep, Linux Commands, Red Hat Enterprise Linux, Bash (Scripting Language), Kubernetes, Command-Line Interface, Network Troubleshooting, Containerization, Ansible, File Systems, Application Deployment, Authentications
★ 4.6 (31) · Intermediate · Specialization · 1 - 3 Months

Skills you'll gain: Linux Administration, Docker (Software), Containerization, Linux, Devops Tools, Network Troubleshooting, Linux Servers, Linux Commands, Ansible, Kubernetes, Infrastructure as Code (IaC), Operating System Administration, Network Monitoring, Network Administration, System Configuration, Remote Access Systems, Multi-Factor Authentication, Network Protocols, Network Security, Hardening
★ 4.8 (10) · Advanced · Course · 1 - 4 Weeks

Skills you'll gain: Linux Administration, Operating System Administration, Linux, Linux Servers, Virtualization, Systems Administration, Containerization, Virtualization and Virtual Machines, Linux Commands, Application Deployment, Virtual Machines, Server Administration, Data Maintenance, Virtual Networking, File Management, Disaster Recovery, Data Loss Prevention, OS Process Management, Service Management, User Accounts
Intermediate · Course · 1 - 4 Weeks

Skills you'll gain: Operating System Administration, Cloud Computing, Linux, Linux Commands, Linux Administration, Cloud Computing Architecture, Cloud Security, Operating Systems, Windows Servers, Microsoft Windows, File Systems, Systems Administration, Mac OS, Command-Line Interface, Virtual Machines, Firewall, Virtualization, Knowledge of Apple Software, File Management, User Accounts
★ 4.6 (5.7K) · Beginner · Course · 1 - 3 Months